Introduction - s3007cn10066

DOE-STD-3007-93

1.0 INTRODUCTION

The purpose of this evaluation is to provide a documented basis for demonstrating subcriticality

during shipment and Nevada Test Site (NTS) handling of the device for the Imaginary Event.

2.0 DESCRIPTION

The device for the Imaginary Event is shown on drawings 18Y-123456 and 18Y-123457. These

drawings also contain mass and dimension information sufficient to readily demonstrate that the

device poses no unusual criticality concerns and in fact will remain subcritical even in the presence

of water internal to and surrounding the device.

For shipment of the pit for this device, the AL-R81 packaging is planned.

3.0 REQUIREMENTS DOCUMENTATION

There are no requirements that are unique to this evaluation; however, shipment of the device for

the Imaginary Event will be in compliance with the Fissile Class I requirements of 10 CFR Part

71.

4.0 METHODOLOGY

Evaluation of this device will be done by comparison with a previously evaluated and approved

device.

5.0 CONTINGENCY ANALYSIS

Assembly and handling of components and the complete device at the NTS do not pose any

unusual criticality concerns. Stated differently, no upset conditions or abnormal environments can

be foreseen whereby criticality is a credible event.

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