Product Description
During the first two years of the Manhattan Project, work proceeded at a slow but steady pace. Significant technical problems had to be solved, and difficulties in the production of plutonium, particularly the inability to process large amounts, often frustrated the scientists. Nonetheless, by 1944 sufficient progress had been made to persuade the scientists that their efforts might succeed. ... Read more

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The book has no illustrations or index. Purchasers are entitled to a free trial membership in the General Books Club where they can select from more than a million books without charge. Subjects: Manhattan District history, Project Y, the Los Alamos Project; Physics; Atomic bomb; Science / Physics; Science / Nuclear Physics; History / Military / Nuclear Warfare; Science / Nuclear Physics; Science / Physics; Technology ... Read more

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An Excerpt from the book-

All participants in Project TRINITY, both military and civilian, were
under the authority of the MED.No military exercises were conducted.
The Los Alamos Scientific Laboratory (LASL), which was staffed and
administered by the University of California (under contract to the
MED), conducted diagnostic experiments.Civilian and military
scientists and technicians, with assistance from other military
personnel, placed gauges, detectors, and other instruments around
ground zero before the detonation.Four offsite monitoring posts were
established in the towns of Nogal, Roswell, Socorro, and Fort Sumner,
New Mexico.An evacuation detachment consisting of 144 to 160
enlisted men and officers was established in case protective measures
or evacuation of civilians living offsite became necessary.At least
94 of these personnel were from the Provisional Detachment Number 1,
Company "B," of the 9812th Technical Service Unit, Army Corps of
Engineers.Military police cleared the test area and recorded the
locations of all personnel before the detonation.

A radiological monitor was assigned to each of the three shelters,
which were located to the north, west, and south of ground zero.Soon
after the detonation, the monitors surveyed the area immediately
around the shelters and then proceeded out the access road to its
intersection with the main road, Broadway.Personnel not essential to
postshot activities were transferred from the west and south shelters
to the Base Camp, about 16 kilometers southwest of ground zero.
Personnel at the north shelter were evacuated when a sudden rise in
radiation levels was detected; it was later learned that the
instrument had not been accurately calibrated and levels had not
increased as much as the instrument indicated.Specially designated
groups conducted onsite and offsite radiological surveys.
... Read more

Product Description
Project TRINITY, conducted by the Manhattan Engineer District (MED), was designed to test and assess the effects of a nuclear weapon. The TRINITY nuclear device was detonated on a 100-foot tower on the Alamogordo Bombing Range in south-central New Mexico at 0530 hours on 16 July 1945. The nuclear yield of the detonation was equivalent to the energy released by detonating 19 kilotons of TNT. At shot-time, the temperature was 21.8 degrees Celsius, and surface air pressure was 850 millibars. The winds were nearly calm at the surface; at 10,300 feet above mean sea level, they were from the southwest at 10 knots. The winds blew the cloud resulting from the detonation to the northeast. From 16 July 1945 through 1946, about 1,000 military and civilian personnel took part in Project TRINITY or visited the test site. The location of the test site and its major installations are shown in the accompanying figures.

Military and Scientific Activities

All participants in Project TRINITY, both military and civilian, were under the authority of the MED. No military exercises were conducted. The Los Alamos Scientific Laboratory (LASL), which was staffed and administered by the University of California (under contract to the MED), conducted diagnostic experiments. Civilian and military scientists and technicians, with assistance from other military personnel, placed gauges, detectors, and other instruments around ground zero before the detonation. Four offsite monitoring posts were established in the towns of Nogal, Roswell, Socorro, and Fort Sumner, New Mexico. An evacuation detachment consisting of 144 to 160 enlisted men and officers was established in case protective measures or evacuation of civilians living offsite became necessary. At least 94 of these personnel were from the Provisional Detachment Number 1, Company "B," of the 9812th Technical Service Unit, Army Corps of Engineers. Military police cleared the test area and recorded the locations of all personnel before the detonation.


Download Project Trinity 1945- 1946 Now! ... Read more

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declassified ... Read more

Product Description
Project TRINITY, conducted by the Manhattan Engineer District (MED),
was designed to test and assess the effects of a nuclear weapon.The
TRINITY nuclear device was detonated on a 100-foot tower on the
Alamogordo Bombing Range in south-central New Mexico at 0530 hours on
16 July 1945.The nuclear yield of the detonation was equivalent to
the energy released by detonating 19 kilotons of TNT.At shot-time,
the temperature was 21.8 degrees Celsius, and surface air pressure was
850 millibars.The winds were nearly calm at the surface; at 10,300
feet above mean sea level, they were from the southwest at 10 knots.
The winds blew the cloud resulting from the detonation to the
northeast.From 16 July 1945 through 1946, about 1,000 military and
civilian personnel took part in Project TRINITY or visited the test
site.The location of the test site and its major installations are
shown in the accompanying figures.
... Read more

Product Description
Project TRINITY, conducted by the Manhattan Engineer District (MED),
was designed to test and assess the effects of a nuclear weapon.The
TRINITY nuclear device was detonated on a 100-foot tower on the
Alamogordo Bombing Range in south-central New Mexico at 0530 hours on
16 July 1945.The nuclear yield of the detonation was equivalent to
the energy released by detonating 19 kilotons of TNT.At shot-time,
the temperature was 21.8 degrees Celsius, and surface air pressure was
850 millibars.The winds were nearly calm at the surface; at 10,300
feet above mean sea level, they were from the southwest at 10 knots.
The winds blew the cloud resulting from the detonation to the
northeast.From 16 July 1945 through 1946, about 1,000 military and
civilian personnel took part in Project TRINITY or visited the test
site.The location of the test site and its major installations are
shown in the accompanying figures.


Military and Scientific Activities

All participants in Project TRINITY, both military and civilian, were
under the authority of the MED.No military exercises were conducted.
The Los Alamos Scientific Laboratory (LASL), which was staffed and
administered by the University of California (under contract to the
MED), conducted diagnostic experiments.Civilian and military
scientists and technicians, with assistance from other military
personnel, placed gauges, detectors, and other instruments around
ground zero before the detonation.Four offsite monitoring posts were
established in the towns of Nogal, Roswell, Socorro, and Fort Sumner,
New Mexico.An evacuation detachment consisting of 144 to 160
enlisted men and officers was established in case protective measures
or evacuation of civilians living offsite became necessary.At least
94 of these personnel were from the Provisional Detachment Number 1,
Company "B," of the 9812th Technical Service Unit, Army Corps of
Engineers.Military police cleared the test area and recorded the
locations of all personnel before the detonation.

A radiological monitor was assigned to each of the three shelters,
which were located to the north, west, and south of ground zero.Soon
after the detonation, the monitors surveyed the area immediately
around the shelters and then proceeded out the access road to its
intersection with the main road, Broadway.Personnel not essential to
postshot activities were transferred from the west and south shelters
to the Base Camp, about 16 kilometers southwest of ground zero.
Personnel at the north shelter were evacuated when a sudden rise in
radiation levels was detected; it was later learned that the
instrument had not been accurately calibrated and levels had not
increased as much as the instrument indicated.Specially designated
groups conducted onsite and offsite radiological surveys.


Safety Standards and Procedures

The safety criteria established for Project TRINITY were based on
calculations of the anticipated dangers from blast pressure, thermal
radiation, and ionizing radiation.The TR-7 Group, also known as the
Medical Group, was responsible for radiological safety.A limit of 5
roentgens of exposure during a two-month period was established.

The Site and Offsite Monitoring Groups were both part of the Medical
Group.The Site Monitoring Group was responsible for equipping
personnel with protective clothing and instruments to measure
radiation exposure, monitoring and recording personnel exposure
according to film badge readings and time spent in the test area, and
providing for personnel decontamination.The Offsite Monitoring Group
surveyed areas surrounding the test site for radioactive fallout.In
addition to these two monitoring groups, a small group of medical
technicians provided radiation detection instruments and monitoring.


Radiation Exposures at Project TRINITY

... Read more

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Formerly classified. Extremely interesting and scary!

This report describes the activities of an estimated 1,000 personnel, both military and civilian, in Project TRINITY, which culminated in detonation of the first nuclear device, in New Mexico in 1945.Scientific and diagnostic experiments to evaluate the effects of the nuclear device were the primary activities engaging military personnel.

Project TRINITY, conducted by the Manhattan Engineer District (MED), was designed to test and assess the effects of a nuclear weapon.

From 1945 to 1962, the U.S. Government, through the Manhattan Engineer District (MED) and its successor agency, the Atomic Energy Commission (AEC), conducted 235 tests of nuclear devices at sites in the United States and in the Atlantic and Pacific Oceans.
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Trinity was the first test of technology for a nuclear weapon. It was conducted by the United States on July 16, 1945, at a location 35 miles (56 km) southeast of Socorro, New Mexico, on what is now White Sands Missile Range, headquartered near Alamogordo. Trinity was a test of an implosion-design plutonium bomb. The Fat Man bomb, using the same conceptual design, was dropped on Nagasaki, Japan, a few weeks later. The detonation was equivalent to the explosion of around 20 kilotons of TNT, and is usually considered as the beginning of the Atomic Age.

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Customer Reviews (1)

Interesting Read.
I am in college and used this as a primary source for a research paper on the atomic bomb.Great stuff. ... Read more